North Hampshire
Basingstoke is one of the weirder seats to change. There's an urban ward in the NW that is outside the seat and in the rural one, and there are rural areas to the SW of the town that could be traded for it. North East Hampshire no longer surrounds the town on both sides.
Surrey
Reigate shrinks. New Godalming & Ash seat takes up the areas that were once in south Guildford and SW Surrey. Guildford now faces west, and I'm tempted to say the Lib-Dems would win this given local results. Godalming & Ash has a weird Aldershot arm that takes it from Surrey Heath. Epson & Ewell now goes across the M25 for Leatherhead. Esher and Walton drops Cobeham - maybe making it a Lib Dem gain off 2019?
I'm stopping for now with most of the south done.
It's certainly a helpful step in that direction. Oxshott and Cobham are the two most abysmally Tory parts of the constituency. Word has it Raab pulled strings to not lose Oxshott; if so, he's ended up just as badly off, assuming the boundaries proposed stay the same.
Of course, the fact that Raab eked out a win last time was due to a near total obliteration of the Labour vote, partially due to a very weak local candidate and partially due to Corbyn derangement. Neither of those things are likely to be in play next time.